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Essential oil comparison of hypericum perforatum L. subsp. perforatum and subsp. veronense (Schrank) ces. from central Italy / Filippo Maggi in The journal of essential oil research, Vol. 20 n°6 (Novembre/Décembre 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 n°6 (Novembre/Décembre 2008) . - pp. 492-494 Titre : Essential oil comparison of hypericum perforatum L. subsp. perforatum and subsp. veronense (Schrank) ces. from central Italy Type de document : texte imprimé Auteurs : Filippo Maggi, Auteur ; Giovanni Ferretti, Auteur Année de publication : 2009 Article en page(s) : pp. 492-494 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Hypericum  perforatum  subsp.  perforatum  Hypericum  perforatum  subsp.  veronense  Hypericaceae  Essential  oil  composition  α-pinene  2,6-dimethyloctane  β-caryophyllene  2,6-dimethylheptane Résumé : Essential oil comparison of flowers from Hypericum perforatum L. subsp. perforatum and subsp. veronense (Schrank) Ces. from central Italy, performed by GC and GC/MS, led us to identify two chemotypes within H. perforatum taxon. α-Pinene and 2,6-dimethyloctane were the most abundant components in H. perforatum subsp. veronense flower oil, while β-caryophyllene and 2,6-dimethylheptane were predominant in the oil of H. perforatum subsp. perforatum. Monoterpenes hydrocarbons were also predominant in the oil of subsp. veronense, while sesquiterpenes and aliphatic hydrocarbons were found in the oil of subsp. perforatum. Such quantitative differentiation in the oil composition of the flowers may be useful as a chemotaxonomic intraspecific discriminatory character. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700067 [article] Essential oil comparison of hypericum perforatum L. subsp. perforatum and subsp. veronense (Schrank) ces. from central Italy [texte imprimé] / Filippo Maggi, Auteur ; Giovanni Ferretti, Auteur . - 2009 . - pp. 492-494. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 n°6 (Novembre/Décembre 2008) . - pp. 492-494 Mots-clés : Hypericum  perforatum  subsp.  perforatum  Hypericum  perforatum  subsp.  veronense  Hypericaceae  Essential  oil  composition  α-pinene  2,6-dimethyloctane  β-caryophyllene  2,6-dimethylheptane Résumé : Essential oil comparison of flowers from Hypericum perforatum L. subsp. perforatum and subsp. veronense (Schrank) Ces. from central Italy, performed by GC and GC/MS, led us to identify two chemotypes within H. perforatum taxon. α-Pinene and 2,6-dimethyloctane were the most abundant components in H. perforatum subsp. veronense flower oil, while β-caryophyllene and 2,6-dimethylheptane were predominant in the oil of H. perforatum subsp. perforatum. Monoterpenes hydrocarbons were also predominant in the oil of subsp. veronense, while sesquiterpenes and aliphatic hydrocarbons were found in the oil of subsp. perforatum. Such quantitative differentiation in the oil composition of the flowers may be useful as a chemotaxonomic intraspecific discriminatory character. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700067